A single surprising pocket of this material was found at the Thetford locality better known for garnets, back in the late 1990s. The whole pocket was sold to the Royal Ontario Museum at the time, before it was known this was more than just odd colored prehnite. It turned out to be quite literally the world's best suolunite by an order of magnitude. GEMS were cut from this material, even! Back around 1999-2000 I was able to exchange a few specimens with the ROM for a choice sturmanite specimen, and this came from that lot (long since sold to a customer, recently repurchased). The unique lavender hue of this material, and the rolling surface, make it a display-worthy piece of this rarity. Small gems could also be cut from the periphery, which is fairly thick and contains translucent zones.